String
Split string into an array of strings at pointer (3) (121)
Date Published: October 20, 2009
 <?php
//split $str into an array of strings
 at pointer (3)
$str = "Hello Friend";
$arr = str_split($str, 3);

print_r($arr);

?> 
Convert a string into an array at pointer (,) (69)
Date Published: October 20, 2009
 <?php
$str="foo,bar,baz,bat";
  $arr=explode(",",$str);
print_r($arr);
?> 
Convert an array into a string and create pointer (,) (110)
Date Published: October 20, 2009
 <?php

$arr = array('lastname', 'email', 'phone');
$str = implode(",", $arr);

echo $str; // lastname,email,phone

?> 
Convert a range into a string and create pointer ( | ) (106)
Date Published: October 20, 2009
 <?php

$arr = range(1,10);
$str = implode(" | ", $arr);

echo $str; // 1 | 2 | 3 | 4 | 5 
| 6 | 7 | 8 | 9 | 10

?>